THINK ABOUT IT: Using a magnifying glass, I heat up a piece of metal to 100 degrees Celsius then, I place a pot of water on top until it comes to a boil so I can cook my pasta outside in nature (Because Mr. Montimurro enjoys pasta in all situations). Which heat transfer processes were used in this example? (Select all that apply)

Question

Convection

Conduction

Percipitation

Radiation

Answer 1

In your example, the following heat transfer processes are involved:

1. Conduction - This occurs when the piece of metal is heated by the magnifying glass and then transfers that heat directly to the pot of water when it is placed on top.

2. Convection - This occurs in the pot of water as it heats up. The warm water at the bottom rises while the cooler water descends, creating a current that distributes the heat throughout the pot until it reaches a boil.

3. Radiation - This occurs when the magnifying glass focuses sunlight onto the metal, effectively transferring energy from the sun to the metal through electromagnetic waves.

Precipitation is not relevant in this context.

So, the selected processes are: Convection, Conduction, and Radiation.